Demand for Used Textbooks Potential Buyers Willingness to Pay Aleisha $59 Brad $45 Claudia $35 Darren $25 Edwina $10 A consumer’s willingness to pay for a good is the maximum price at which he or she would buy that good.

Consumer Surplus The total consumer surplus is given by the entire shaded area - the sum of the individual consumer surpluses of Aleisha, Brad, and Claudia - equal to $29 + $15 + $5 = $49.